./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67d0d28278c33bd8f728db1165a077a9d9ba1963e0d97b66e361587c8715de93 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 19:13:50,958 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 19:13:51,045 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 19:13:51,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 19:13:51,053 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 19:13:51,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 19:13:51,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 19:13:51,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 19:13:51,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 19:13:51,091 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 19:13:51,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 19:13:51,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 19:13:51,092 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 19:13:51,092 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 19:13:51,094 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 19:13:51,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 19:13:51,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 19:13:51,095 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 19:13:51,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 19:13:51,095 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 19:13:51,095 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 19:13:51,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 19:13:51,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 19:13:51,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 19:13:51,099 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 19:13:51,100 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 19:13:51,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 19:13:51,100 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 19:13:51,100 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 19:13:51,101 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 19:13:51,101 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 19:13:51,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 19:13:51,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:13:51,101 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 19:13:51,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 19:13:51,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 19:13:51,102 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 19:13:51,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 19:13:51,103 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 19:13:51,103 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 19:13:51,103 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 19:13:51,105 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 19:13:51,105 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67d0d28278c33bd8f728db1165a077a9d9ba1963e0d97b66e361587c8715de93 [2024-11-16 19:13:51,354 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 19:13:51,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 19:13:51,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 19:13:51,387 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 19:13:51,387 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 19:13:51,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i [2024-11-16 19:13:52,858 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 19:13:53,103 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 19:13:53,104 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i [2024-11-16 19:13:53,118 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bce494622/5247f8f67baf4e2a98f9bd51a15a29b6/FLAG2a3c285e5 [2024-11-16 19:13:53,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bce494622/5247f8f67baf4e2a98f9bd51a15a29b6 [2024-11-16 19:13:53,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 19:13:53,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 19:13:53,140 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 19:13:53,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 19:13:53,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 19:13:53,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c2eae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53, skipping insertion in model container [2024-11-16 19:13:53,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,201 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 19:13:53,399 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-16 19:13:53,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:13:53,665 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 19:13:53,680 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi001_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2024-11-16 19:13:53,732 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 19:13:53,777 INFO L204 MainTranslator]: Completed translation [2024-11-16 19:13:53,778 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53 WrapperNode [2024-11-16 19:13:53,778 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 19:13:53,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 19:13:53,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 19:13:53,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 19:13:53,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,816 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,854 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 105 [2024-11-16 19:13:53,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 19:13:53,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 19:13:53,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 19:13:53,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 19:13:53,870 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,876 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,906 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-16 19:13:53,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,916 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,917 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 19:13:53,932 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 19:13:53,932 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 19:13:53,932 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 19:13:53,933 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (1/1) ... [2024-11-16 19:13:53,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 19:13:53,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 19:13:53,980 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-16 19:13:53,986 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-16 19:13:54,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-16 19:13:54,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 19:13:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-16 19:13:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-16 19:13:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-16 19:13:54,040 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-16 19:13:54,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 19:13:54,041 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-16 19:13:54,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 19:13:54,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 19:13:54,043 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-16 19:13:54,196 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 19:13:54,199 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 19:13:54,570 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-16 19:13:54,571 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 19:13:54,832 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 19:13:54,832 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 19:13:54,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:13:54 BoogieIcfgContainer [2024-11-16 19:13:54,833 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 19:13:54,837 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 19:13:54,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 19:13:54,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 19:13:54,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 07:13:53" (1/3) ... [2024-11-16 19:13:54,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a672c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:13:54, skipping insertion in model container [2024-11-16 19:13:54,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 07:13:53" (2/3) ... [2024-11-16 19:13:54,843 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a672c46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 07:13:54, skipping insertion in model container [2024-11-16 19:13:54,844 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:13:54" (3/3) ... [2024-11-16 19:13:54,845 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi001_power.oepc_pso.oepc_rmo.oepc.i [2024-11-16 19:13:54,865 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 19:13:54,866 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 19:13:54,866 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-16 19:13:54,921 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-16 19:13:54,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 72 flow [2024-11-16 19:13:54,991 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-11-16 19:13:54,992 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:13:54,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 1/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-16 19:13:54,997 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 32 transitions, 72 flow [2024-11-16 19:13:54,999 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 30 transitions, 66 flow [2024-11-16 19:13:55,009 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 19:13:55,014 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@534a64f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 19:13:55,015 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-16 19:13:55,018 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-16 19:13:55,018 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-11-16 19:13:55,018 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-16 19:13:55,019 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:13:55,019 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-16 19:13:55,020 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:13:55,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:13:55,026 INFO L85 PathProgramCache]: Analyzing trace with hash 10000317, now seen corresponding path program 1 times [2024-11-16 19:13:55,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:13:55,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58240911] [2024-11-16 19:13:55,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:13:55,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:13:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:13:55,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:13:55,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:13:55,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58240911] [2024-11-16 19:13:55,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58240911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:13:55,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:13:55,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-16 19:13:55,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488031755] [2024-11-16 19:13:55,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:13:55,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 19:13:55,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:13:55,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 19:13:55,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 19:13:55,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 32 [2024-11-16 19:13:55,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:55,588 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:13:55,588 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 32 [2024-11-16 19:13:55,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:13:55,957 INFO L124 PetriNetUnfolderBase]: 701/1159 cut-off events. [2024-11-16 19:13:55,958 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-16 19:13:55,963 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2323 conditions, 1159 events. 701/1159 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 5649 event pairs, 56 based on Foata normal form. 48/1204 useless extension candidates. Maximal degree in co-relation 2313. Up to 1016 conditions per place. [2024-11-16 19:13:55,974 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 37 selfloop transitions, 2 changer transitions 2/45 dead transitions. [2024-11-16 19:13:55,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 45 transitions, 181 flow [2024-11-16 19:13:55,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 19:13:55,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-16 19:13:55,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-16 19:13:55,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-11-16 19:13:55,990 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 66 flow. Second operand 3 states and 62 transitions. [2024-11-16 19:13:55,991 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 45 transitions, 181 flow [2024-11-16 19:13:55,993 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 45 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:13:55,995 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 62 flow [2024-11-16 19:13:55,997 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2024-11-16 19:13:56,002 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2024-11-16 19:13:56,003 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 62 flow [2024-11-16 19:13:56,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:56,003 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:13:56,003 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:13:56,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 19:13:56,004 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:13:56,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:13:56,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1707884919, now seen corresponding path program 1 times [2024-11-16 19:13:56,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:13:56,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948148830] [2024-11-16 19:13:56,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:13:56,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:13:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:13:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:13:56,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:13:56,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948148830] [2024-11-16 19:13:56,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948148830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:13:56,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:13:56,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 19:13:56,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137937520] [2024-11-16 19:13:56,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:13:56,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 19:13:56,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:13:56,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 19:13:56,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 19:13:56,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 32 [2024-11-16 19:13:56,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:56,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:13:56,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 32 [2024-11-16 19:13:56,220 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:13:56,464 INFO L124 PetriNetUnfolderBase]: 389/741 cut-off events. [2024-11-16 19:13:56,464 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2024-11-16 19:13:56,467 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1487 conditions, 741 events. 389/741 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3365 event pairs, 103 based on Foata normal form. 48/786 useless extension candidates. Maximal degree in co-relation 1477. Up to 349 conditions per place. [2024-11-16 19:13:56,470 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 44 selfloop transitions, 4 changer transitions 1/53 dead transitions. [2024-11-16 19:13:56,471 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 53 transitions, 218 flow [2024-11-16 19:13:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 19:13:56,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-16 19:13:56,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 75 transitions. [2024-11-16 19:13:56,473 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5859375 [2024-11-16 19:13:56,473 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 62 flow. Second operand 4 states and 75 transitions. [2024-11-16 19:13:56,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 53 transitions, 218 flow [2024-11-16 19:13:56,475 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 53 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-16 19:13:56,477 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 84 flow [2024-11-16 19:13:56,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-16 19:13:56,480 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2024-11-16 19:13:56,480 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 84 flow [2024-11-16 19:13:56,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:56,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:13:56,481 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:13:56,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 19:13:56,481 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:13:56,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:13:56,482 INFO L85 PathProgramCache]: Analyzing trace with hash 172089486, now seen corresponding path program 1 times [2024-11-16 19:13:56,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:13:56,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463633543] [2024-11-16 19:13:56,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:13:56,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:13:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:13:56,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:13:56,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:13:56,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463633543] [2024-11-16 19:13:56,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463633543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:13:56,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:13:56,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 19:13:56,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79959079] [2024-11-16 19:13:56,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:13:56,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:13:56,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:13:56,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:13:56,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:13:56,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 32 [2024-11-16 19:13:56,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:56,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:13:56,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 32 [2024-11-16 19:13:56,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:13:56,897 INFO L124 PetriNetUnfolderBase]: 181/349 cut-off events. [2024-11-16 19:13:56,898 INFO L125 PetriNetUnfolderBase]: For 80/80 co-relation queries the response was YES. [2024-11-16 19:13:56,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 819 conditions, 349 events. 181/349 cut-off events. For 80/80 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1186 event pairs, 69 based on Foata normal form. 24/370 useless extension candidates. Maximal degree in co-relation 807. Up to 146 conditions per place. [2024-11-16 19:13:56,901 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 35 selfloop transitions, 6 changer transitions 1/46 dead transitions. [2024-11-16 19:13:56,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 207 flow [2024-11-16 19:13:56,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:13:56,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:13:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 74 transitions. [2024-11-16 19:13:56,902 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4625 [2024-11-16 19:13:56,902 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 84 flow. Second operand 5 states and 74 transitions. [2024-11-16 19:13:56,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 207 flow [2024-11-16 19:13:56,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 46 transitions, 198 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-16 19:13:56,907 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 100 flow [2024-11-16 19:13:56,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2024-11-16 19:13:56,908 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2024-11-16 19:13:56,909 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 100 flow [2024-11-16 19:13:56,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:56,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:13:56,910 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:13:56,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 19:13:56,910 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:13:56,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:13:56,911 INFO L85 PathProgramCache]: Analyzing trace with hash -298166207, now seen corresponding path program 1 times [2024-11-16 19:13:56,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:13:56,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29507914] [2024-11-16 19:13:56,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:13:56,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:13:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:13:57,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:13:57,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:13:57,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29507914] [2024-11-16 19:13:57,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29507914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:13:57,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:13:57,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 19:13:57,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455291768] [2024-11-16 19:13:57,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:13:57,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 19:13:57,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:13:57,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 19:13:57,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 19:13:57,301 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 32 [2024-11-16 19:13:57,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 100 flow. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:57,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:13:57,302 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 32 [2024-11-16 19:13:57,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:13:57,509 INFO L124 PetriNetUnfolderBase]: 233/457 cut-off events. [2024-11-16 19:13:57,509 INFO L125 PetriNetUnfolderBase]: For 226/226 co-relation queries the response was YES. [2024-11-16 19:13:57,510 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1117 conditions, 457 events. 233/457 cut-off events. For 226/226 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1740 event pairs, 87 based on Foata normal form. 4/458 useless extension candidates. Maximal degree in co-relation 1103. Up to 243 conditions per place. [2024-11-16 19:13:57,512 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 29 selfloop transitions, 2 changer transitions 18/53 dead transitions. [2024-11-16 19:13:57,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 53 transitions, 282 flow [2024-11-16 19:13:57,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 19:13:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-16 19:13:57,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 76 transitions. [2024-11-16 19:13:57,514 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.475 [2024-11-16 19:13:57,515 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 100 flow. Second operand 5 states and 76 transitions. [2024-11-16 19:13:57,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 53 transitions, 282 flow [2024-11-16 19:13:57,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 53 transitions, 229 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-16 19:13:57,519 INFO L231 Difference]: Finished difference. Result has 42 places, 29 transitions, 84 flow [2024-11-16 19:13:57,519 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=84, PETRI_PLACES=42, PETRI_TRANSITIONS=29} [2024-11-16 19:13:57,520 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 6 predicate places. [2024-11-16 19:13:57,520 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 29 transitions, 84 flow [2024-11-16 19:13:57,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:57,521 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:13:57,521 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:13:57,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 19:13:57,522 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:13:57,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:13:57,522 INFO L85 PathProgramCache]: Analyzing trace with hash -268538421, now seen corresponding path program 2 times [2024-11-16 19:13:57,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:13:57,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555053490] [2024-11-16 19:13:57,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:13:57,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:13:57,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 19:13:58,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 19:13:58,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 19:13:58,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555053490] [2024-11-16 19:13:58,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555053490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 19:13:58,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 19:13:58,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 19:13:58,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286061880] [2024-11-16 19:13:58,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 19:13:58,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 19:13:58,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 19:13:58,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 19:13:58,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 19:13:58,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 6 out of 32 [2024-11-16 19:13:58,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 29 transitions, 84 flow. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:58,347 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-16 19:13:58,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6 of 32 [2024-11-16 19:13:58,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-16 19:13:58,640 INFO L124 PetriNetUnfolderBase]: 151/314 cut-off events. [2024-11-16 19:13:58,640 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-11-16 19:13:58,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 715 conditions, 314 events. 151/314 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1016 event pairs, 60 based on Foata normal form. 4/317 useless extension candidates. Maximal degree in co-relation 702. Up to 120 conditions per place. [2024-11-16 19:13:58,642 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 26 selfloop transitions, 2 changer transitions 30/62 dead transitions. [2024-11-16 19:13:58,642 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 62 transitions, 290 flow [2024-11-16 19:13:58,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 19:13:58,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-16 19:13:58,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 103 transitions. [2024-11-16 19:13:58,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40234375 [2024-11-16 19:13:58,644 INFO L175 Difference]: Start difference. First operand has 42 places, 29 transitions, 84 flow. Second operand 8 states and 103 transitions. [2024-11-16 19:13:58,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 62 transitions, 290 flow [2024-11-16 19:13:58,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 62 transitions, 274 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-16 19:13:58,646 INFO L231 Difference]: Finished difference. Result has 48 places, 29 transitions, 90 flow [2024-11-16 19:13:58,646 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=90, PETRI_PLACES=48, PETRI_TRANSITIONS=29} [2024-11-16 19:13:58,647 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 12 predicate places. [2024-11-16 19:13:58,647 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 29 transitions, 90 flow [2024-11-16 19:13:58,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 19:13:58,647 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-16 19:13:58,647 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 19:13:58,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 19:13:58,648 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P0Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-16 19:13:58,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 19:13:58,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1591717503, now seen corresponding path program 3 times [2024-11-16 19:13:58,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 19:13:58,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033101514] [2024-11-16 19:13:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 19:13:58,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 19:13:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:13:58,717 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-16 19:13:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-16 19:13:58,886 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-16 19:13:58,886 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-16 19:13:58,887 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-16 19:13:58,889 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-16 19:13:58,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-16 19:13:58,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-16 19:13:58,892 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-16 19:13:58,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 19:13:58,893 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2024-11-16 19:13:58,971 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-16 19:13:58,972 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 19:13:58,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 07:13:58 BasicIcfg [2024-11-16 19:13:58,979 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 19:13:58,979 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 19:13:58,979 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 19:13:58,979 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 19:13:58,980 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 07:13:54" (3/4) ... [2024-11-16 19:13:58,981 INFO L137 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-16 19:13:59,077 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 19:13:59,079 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 19:13:59,080 INFO L158 Benchmark]: Toolchain (without parser) took 5942.11ms. Allocated memory was 144.7MB in the beginning and 245.4MB in the end (delta: 100.7MB). Free memory was 90.3MB in the beginning and 180.2MB in the end (delta: -89.9MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-16 19:13:59,080 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 144.7MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 19:13:59,080 INFO L158 Benchmark]: CACSL2BoogieTranslator took 638.39ms. Allocated memory is still 144.7MB. Free memory was 90.0MB in the beginning and 64.5MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-16 19:13:59,081 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.64ms. Allocated memory is still 144.7MB. Free memory was 64.5MB in the beginning and 62.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 19:13:59,081 INFO L158 Benchmark]: Boogie Preprocessor took 72.64ms. Allocated memory is still 144.7MB. Free memory was 62.0MB in the beginning and 59.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 19:13:59,082 INFO L158 Benchmark]: IcfgBuilder took 901.59ms. Allocated memory was 144.7MB in the beginning and 203.4MB in the end (delta: 58.7MB). Free memory was 59.0MB in the beginning and 144.3MB in the end (delta: -85.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2024-11-16 19:13:59,082 INFO L158 Benchmark]: TraceAbstraction took 4141.93ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 144.3MB in the beginning and 188.6MB in the end (delta: -44.3MB). Peak memory consumption was 118.2MB. Max. memory is 16.1GB. [2024-11-16 19:13:59,082 INFO L158 Benchmark]: Witness Printer took 100.29ms. Allocated memory is still 245.4MB. Free memory was 188.6MB in the beginning and 180.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-16 19:13:59,084 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 144.7MB. Free memory is still 109.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 638.39ms. Allocated memory is still 144.7MB. Free memory was 90.0MB in the beginning and 64.5MB in the end (delta: 25.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.64ms. Allocated memory is still 144.7MB. Free memory was 64.5MB in the beginning and 62.0MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.64ms. Allocated memory is still 144.7MB. Free memory was 62.0MB in the beginning and 59.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 901.59ms. Allocated memory was 144.7MB in the beginning and 203.4MB in the end (delta: 58.7MB). Free memory was 59.0MB in the beginning and 144.3MB in the end (delta: -85.3MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4141.93ms. Allocated memory was 203.4MB in the beginning and 245.4MB in the end (delta: 41.9MB). Free memory was 144.3MB in the beginning and 188.6MB in the end (delta: -44.3MB). Peak memory consumption was 118.2MB. Max. memory is 16.1GB. * Witness Printer took 100.29ms. Allocated memory is still 245.4MB. Free memory was 188.6MB in the beginning and 180.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L710] 0 int __unbuffered_p1_EAX = 0; [L712] 0 int __unbuffered_p1_EBX = 0; [L713] 0 _Bool main$tmp_guard0; [L714] 0 _Bool main$tmp_guard1; [L716] 0 int x = 0; [L717] 0 _Bool x$flush_delayed; [L718] 0 int x$mem_tmp; [L719] 0 _Bool x$r_buff0_thd0; [L720] 0 _Bool x$r_buff0_thd1; [L721] 0 _Bool x$r_buff0_thd2; [L722] 0 _Bool x$r_buff1_thd0; [L723] 0 _Bool x$r_buff1_thd1; [L724] 0 _Bool x$r_buff1_thd2; [L725] 0 _Bool x$read_delayed; [L726] 0 int *x$read_delayed_var; [L727] 0 int x$w_buff0; [L728] 0 _Bool x$w_buff0_used; [L729] 0 int x$w_buff1; [L730] 0 _Bool x$w_buff1_used; [L732] 0 int y = 0; [L734] 0 int z = 0; [L735] 0 _Bool weak$$choice0; [L736] 0 _Bool weak$$choice2; [L815] 0 pthread_t t1601; [L816] FCALL, FORK 0 pthread_create(&t1601, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1601=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L817] 0 pthread_t t1602; [L818] FCALL, FORK 0 pthread_create(&t1602, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1601=-1, t1602=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L740] 1 x$w_buff1 = x$w_buff0 [L741] 1 x$w_buff0 = 1 [L742] 1 x$w_buff1_used = x$w_buff0_used [L743] 1 x$w_buff0_used = (_Bool)1 [L744] CALL 1 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L744] RET 1 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L745] 1 x$r_buff1_thd0 = x$r_buff0_thd0 [L746] 1 x$r_buff1_thd1 = x$r_buff0_thd1 [L747] 1 x$r_buff1_thd2 = x$r_buff0_thd2 [L748] 1 x$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0, z=0] [L751] 1 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1, z=0] [L768] 2 y = 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=0] [L771] 2 z = 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=1] [L774] 2 __unbuffered_p1_EAX = z VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=1] [L777] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L778] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L779] 2 x$flush_delayed = weak$$choice2 [L780] 2 x$mem_tmp = x [L781] 2 x = !x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff1) [L782] 2 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : x$w_buff0)) [L783] 2 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff1 : x$w_buff1)) [L784] 2 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used)) [L785] 2 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L786] 2 x$r_buff0_thd2 = weak$$choice2 ? x$r_buff0_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff0_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2)) [L787] 2 x$r_buff1_thd2 = weak$$choice2 ? x$r_buff1_thd2 : (!x$w_buff0_used || !x$r_buff0_thd2 && !x$w_buff1_used || !x$r_buff0_thd2 && !x$r_buff1_thd2 ? x$r_buff1_thd2 : (x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L788] 2 __unbuffered_p1_EBX = x [L789] 2 x = x$flush_delayed ? x$mem_tmp : x [L790] 2 x$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2, z=1] [L754] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L755] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L756] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L757] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L758] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L793] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L794] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L795] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L796] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L797] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L761] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L800] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L820] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1601=-1, t1602=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L822] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L822] RET 0 assume_abort_if_not(main$tmp_guard0) [L824] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L825] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L826] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L827] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L828] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1601=-1, t1602=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L831] 0 main$tmp_guard1 = !(y == 2 && __unbuffered_p1_EAX == 1 && __unbuffered_p1_EBX == 0) VAL [\old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1601=-1, t1602=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L833] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression VAL [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] [L18] 0 reach_error() VAL [\old(arg)={0:0}, \old(expression)=0, __unbuffered_cnt=2, __unbuffered_p1_EAX=1, __unbuffered_p1_EBX=0, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=1, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=1, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=1, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2, z=1] - UnprovableResult [Line: 18]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 816]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 818]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 51 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.9s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 148 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 144 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 538 IncrementalHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 538 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=100occurred in iteration=3, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 448 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-16 19:13:59,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE